AWS Certified Solution Architect – Associate Feb 2018 Exam learning path provides a brief summary of the exam and what it requires to clear the same.
OpenRefine is a powerful tool for exploring, cleaning, and transforming data. In this lesson you will learn how to use Refine to fetch URLs and parse web content.
How to add a smoothed line and fit to plots with stat_smooth and geom_smmoth in ggplot2 and R.
library(plotly) x <- rnorm(100) y <- + .7*x + rnorm(100) f1 <- as.factor(c(rep(“A”,50),rep(“B”,50))) f2 <- as.factor(rep(c(rep(“C”,25),rep(“D”,25)),2)) df <- data.frame(cbind(x,y)) df$f1 <- f1 df$f2 <- f2 ggplot(df,aes(x=x,y=y)) + geom_point() + facet_grid(f1~f2) + stat_smooth(method=“lm”) ggplotly()
This article aims to demonstrate some of the many uses of the Fn::Sub syntax in the AWS CloudFormation service. Topics include:
Basic Fn::Sub and !Sub syntax
Short and long form syntax
Nested Sub and ImportValue statements
About a year ago (Sept 2016, along with YAML support) AWS added a new intrinsic function to CloudFormation: Fn::Sub. This greatly improved string concatenation in CloudFormation.